Cutter-bar guide for harvesters



(No Model.) I

J. D. NORRIS. CUTTER BAR GUIDE FOR HARVES'TERS.

No. 405,048. Patented June 11, 1889.

gag/Q m UNITED STATES PATENT OFFICE.

JOSEPH 1). NoEErs, or LA PORTE, INDIANA.

CUTTER-BAR GUIDE FOR HARVESTERS.

SPECIFICATION formingpart of Letters Patent No. 405,048, dated June 11,1889.

Application filed December 20, 1888- Serial No. 294,164. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH D. NoRRIs, a citizen of the United States,residing at La Porte, in the county of La Porto and State of Indiana,have invented a new and useful Improvement in Gutter-Bar Guides forHarvesters, of which the following is a specification.

My invention relates to an improved construction of the guides, orbuttons, as they are also sometimes termed, employed on harvestingmachinery secured to the finger-bar at intervals and extending over theback of the cutter-bar to guide it and hold it down in its reciprocatingmovement.

As hithertomost commonly constructed, the guide has consisted of a solidmetal finger bolted or riveted to the finger-bar to extend at itsforward end over the back of the cutter-bar, and the more usual mannerof lubrication practiced with this construction has been to apply thelubricating medium to the cutter-bar and depend for spreading thelubricant upon the vibration of the bar in 0011- tact with the guides.This construction is objectionable for various reasons, among whichmaybe mentioned that the lubricant is wasted to a very material extentby being wiped off the bar by the grain or grass, thereby tending toprevent the contact-surfaces of the guides with the bar from becomingthoroughly oiled, and causing the comparatively small quantity oflubricant that reaches the guides to be soon removed. Further objectionsto the guide thus referred to as constituting the more common formhitherto employed are that, being formed entirely of metal, it issomewhat heavy, and necessarily so, to afford the requisite strength,and by the frictional contact of the metal of the cutter-bar with thatof the guides the parts wear rapidly, and when the guides become bentupward by the strain to which they are subjected the cutter -bar strikesagainst them, producing clattering noise. These objections I overcome bymy improvement.

My invention consists in a cutter-bar guid having a metal cap and awooden filling.

It further consists in a cutter bar guide formed with a metal cap and afilling within the cap provided with a lubricant-duct.

It also consists in details of construction and combinations of parts.

In the accompanying drawings, Figure 1 shows my improved guide in sideelevation applied to the part of a harvesting-machine with which it isused to control the cutter-bar. Fig. 2 is a section of the guide, taken,on the line 2 of Fig. 3 and viewed in the direction of the arrow, andFig. 3 if a section taken on the line 3 of Fig. 2 and viewed in thedirection of the arrow.

A is the guide, which, as shown, comprises a metal, preferably steel,cap 1' of the form illustrated or of any other suitable form, and afilling r, of wood, preferably of a hard variety, and conforming inshape to the interior of the cap 0", into which it should fit. Both thecap and filling are perforated to admit through them the securing meansq, (bolt or rivet,) by which the guide is fastened in position, and thatpart of the guide which projects beyond the edge of the finger-bar andextends over the cutter-bar may be formed with an offset, as shown, andis provided with a receptacle 0 for lubricant, which, as the simplestform thereof, may comprise a concavity o in the upper side of theforward end of the filling, having a comparatively small perforation nin its base, and thus adapted to receive cotton or other material, whichwill absorb the lubricant and hold and supply it to the reciprocatingcutter-bar. The cap r,where it covers the oil-receptacle, may beprovided with an opening m, leading into the concavity 0, and throughwhich to supply lubricant to the receptacle for it.

I have thus described in detail whatI consider to be the preferredconstruction of my improved device, since it affords as advantages aguide which permits ready and effectual lubrication, and tends thus toprevent wear of the parts, and which is light and strong, owing to thewooden part and the cap or arched form of the covering part 1". Further,it presents to the reciprocating cutterbar a friction-surface ofwood,being a material which is not so readily worn by thebar, and whichdoes not so readily wear the latter as would metal, and, besides, thewood becomes itself saturated with the lubricant, and thus alwaysinsures the presentation of a well-lubricated surface to the cutter-bar.

I do not desire to be understood as limiting myself to the details ofconstruction herein referred to as being the preferred, as it may bereadily modified Without departing from the spirit of my invention,which I consider to include any cutter-bar guide formed With a 5 cap anda filling, Whether the latter be composed of metal or of Wood.

Vhat I claim as new, and desire to secure by Letters Patent, is

1. In a guide A for the cutter-bars of har- IO vesting-machines, thecombination of a metal cap 0' and a Wooden filling 0" Within the cap,substantially as described.

2. 'A guide A for the cutter-bars of harvesting-machines, comprising ametal cap 7 and a filling 7" Within the cap provided with alubricant-receptacle, substantially as described.

3. A guide A for the cutter-bars of harvest-- ing-machines, comprising;a cap 0", provided with a perforation m near one en d, a Wooden filling1 Within the cap, having a concavity 0 coincident with the perforationin the cap, and an opening at in its base, substantially as described.

1\[ORTIMER NYE, J. 1-1. KIERSTEAD.

